Both Voyagers left the ecliptic plane with their final gravitational slingshots (Voyager 1 went north, Voyager 2 went south so only the Canberra radio dishes ca

Both Voyagers left the ecliptic plane with their final gravitational slingshots (Voyager 1 went north, Voyager 2 went south so only the Canberra radio dishes can communicate with it) so even when Earth is further from them than the sun there's 35 degrees of separation.